JP3803553B2 - Printing machine for rotary press - Google Patents

Description

[0001]
The present invention relates to a printing apparatus for a rotary printing press described in the high-order concept part of claim 1.
[0002]
A printing device in which the outer periphery of the plate cylinder substantially corresponds to the outer periphery of the partial length of the folding device to which it belongs is, for example, a printing device for printing end products according to DE 44 29 891, and also a German patent. A printing device for newspaper printing according to the specification of the publication No. 19815294 is also known.
[0003]
In printing units for edge printing, it has been proposed that the diameter of the rubber blanket cylinder be at least twice the diameter of the plate cylinder. In a printing unit for newspaper printing, the plate cylinder and the rubber blanket cylinder have the same outer circumference and the length of newspaper. In two types of two printing units, the plate cylinders may be the same length, for example 1240 mm, 1600 mm and others. In principle, each printing unit type can print four newspapers side by side even if it has an edge printing machine.
U.S. Pat. No. 1,733,707 discloses a printing device in which the plate cylinder and the counter pressure cylinder have intermediate support rings.
[0004]
An object of the present invention is to provide a printing apparatus.
[0005]
This problem has been solved by the features of claim 1.
[0006]
The advantages obtained by the present invention are particularly conspicuous because the plate cylinder can use a plate cylinder coefficient (cylinder effective width divided by cylinder effective width diameter) i = 3.5 and larger. There is no vibration streak. Very long and thin plate cylinders can be used. Such a plate cylinder can be provided for receiving a sleeve or plate.
[0007]
Embodiments of the invention are described in detail below.
[0008]
In the drawing
FIG. 1 shows a first embodiment of a cylinder of a printing unit with an intermediate support ring,
FIG. 2 is a schematic plan view of a printing unit having another embodiment of a cylinder with an intermediate support ring,
FIG. 3 is a front view of the printing unit shown in FIG.
FIG. 4 shows another embodiment of a printing unit with two printing devices for duplex printing having a cylinder / roller / spindle with an intermediate support ring,
FIG. 5 shows a double-sided printing in which the rotation axes of cylinders / rollers / spindles for front surface printing and back surface printing are respectively located on one surface, and these surfaces intersect at a predetermined angle. Schematic diagram of a printing unit having a printing device for
FIG. 6 is a schematic view showing a state in which printing units each having a 2 × 5 printing apparatus are arranged one above the other, and an inking device for the printing apparatus is arranged in two horizontal frames that can run. It is.
[0009]
As shown in FIG. 1, the plate cylinder 01 or the rubber blanket cylinder 02 according to the invention has one support device 03; 04, respectively, for example in the middle, within the effective width length m of the cylinder, Through these support devices, a force or counter force can be introduced into the support device, so that the support device can be kept in contact with the cylinder / roller / spindle directly adjacent to the support device with a preselectable strength. . The support devices 03; 04 can, for example, be manufactured from special steel, for example, an endless support ring, so-called “Scmitzring”, which rotates with a high accuracy and is perfectly circular. Support device 03; 04 (for example arranged in the middle of the effective width, but not necessarily in the middle of the effective width) provided in an advantageous manner between the left and right cylinder effective width end 10 May be shortened in the following and referred to as “intermediate support ring”. The support device may be arranged off the center of the effective width.
[0010]
1 and 2 show how the plate cylinder 01 or the rubber blanket cylinder 02 provided with the intermediate support ring 03 (04) can be configured as an example.
[0011]
The heavy spindle 06 (FIG. 1), which has a left collar 07 (to which the right journal 08 is connected), is connected to the right collar 07 in a frictional connection, for example, from the left collar 07 to the right. (Press fit), and the following members are provided in contact with each other on the end face side:
Outer left support ring 09, left fitting tube 11 (width of one or many integer multiples plus additional printing), intermediate support device 03 (04) (for example, intermediate support ring) A mating tube 12 (one or multiple integer multiples of a newspaper plus a reprint), an outer right support ring 15. Further, the tightening nut 13 and the counter nut 14 are continued, and the female thread of the counter nut 14 is engaged with the male thread 16 of the left threaded member 17. The spindle 06 ends with a right journal 18 to which a drive (motor or gear) is engaged.
[0012]
Since the components 15; 12; 03 (04); 11 and 09 are connected to the spindle 06 by press fitting to the spindle 06 via the tightening nut 13, printing is performed. The parts are pressed closely together. As a result, a cylinder 01 or 02 that is relatively strong against bending is obtained.
[0013]
The two journals 08; 18 are used in a driveable manner in bearings of the associated side frame (not shown).
[0014]
The mating tubes 11; 12 comprise known (not shown) plate tensioning and / or clamping devices or rubber blanket tensioning and / or clamping devices. A plate, for example, an offset printing plate or a rubber blanket, can be fixed to the plate cylinder 01 or the rubber blanket cylinder 02 by the fitting tube.
[0015]
In the embodiment shown in FIG. 1, an endless printing plate sleeve or rubber blanket sleeve can be tensioned. This is particularly possible in a configuration in which only one intermediate support device 03 or 04 is provided for each cylinder 01; 02 and no outer support ring 09; 15 is provided.
[0016]
Another configuration of an intermediate support device, for example a cylinder with an intermediate support ring, is shown in FIG. The printing unit 40 includes two printing devices 45 and 50. That is, in this case, the printing apparatus 45 includes the left printing apparatus 45 and the right printing apparatus 50. Printing apparatus 45; 50, the screen roller 21 with the intermediate support ring 24 respectively (= arbitrary structured roller having an outer peripheral surface), an ink transfer cylinder 22 having an intermediate support ring 26, between the middle and a plate cylinder 23 having a supporting-ring 2 7. Every cylinder 22, 23 or roller 21 has a respective effective width or barrel effective width (Ballen) 55 which may have the same effective width length or different effective width lengths "m". Yes. All effective widths 55 have areas 19 that do not have an outer support ring. The effective width length m of the effective width 55 corresponds to a multiple of a positive number of newspaper page width + reprinting. The screen roller 21 may have a diameter corresponding to a plurality of positive multiples of the diameter of the plate cylinder 23, and the ink transfer cylinder 22 that cooperates with the plate cylinder 23 is the same. The screen roller 21 may have a diameter that is the same as or smaller than the diameter of the plate cylinder 23.
[0017]
All the cylinders 22 and 23 and the rollers 21 are supported on the side frames 28 and 29, and are driven via a transmission device or an individual driving device.
[0018]
The structural form of the screen roller 21 shown in FIG. 2 is another embodiment for the cylinder 01; 02 shown in FIG. All cylinders with intermediate support rings 24; 26; 27 can be configured according to two construction types.
[0019]
The intermediate support rings 24; 26; 27 are preferably constructed in one piece in the illustrated embodiment, and are preferably endless circular support ring sections with left and right cylindrical shoulders 32, 33. It consists of 31. The shoulders 32 and 33 are several centimeters wide and have a smaller diameter than the support ring portion 31. The shoulders 32 and 33 are used as receiving portions and centering for the left fitting tube 34 or the right fitting tube 36. These fitting tubes 34; 36 have their first ends fitted over the shoulders 33 or 32 respectively belonging to the support device 24 and are connected to these shoulders by a form connection (form restraint) and Coupled to friction connection (press fit). One terminating member 37 or 38 is fixed to the second end of the fitting tube 34; 36, respectively. These end members 37; 38 have a mating pin 39 or 41 matched to the inner cross-section and diameter of the mating tube 34; 36, and further have one support pin 42 or 43, respectively. Yes. The support pins 42; 43 are supported on the side frames 28; 29 and protrude from at least one side frame. The fitting pins 39; 41 are provided inside the fitting pipes 34; 36, and are respectively connected to the fitting pipes via a friction-connecting press bond. The end members 37; 38 are configured as race rings or so-called endless or segmented trunk pillows (outer support rings) that rotate exactly circularly.
[0020]
For safety reasons, the end member 37; 38 is connected to the side of the shoulder 32; 33 via a number of threaded rod connections 44, 46 or 47, 48, respectively.
[0021]
The sliding surface (supporting surface) 25 of the intermediate support device 24 is pressed against the sliding surface (supporting surface) 30 of the intermediate support device 26 of the ink transfer cylinder 22 and rolls, for example. In addition, the sliding surface (support surface) 30 of the intermediate support device 26 of the ink transfer cylinder 22 rolls along the slide surface (support surface) 35 of the intermediate support device 26 of the plate cylinder 23.
[0022]
The plate cylinder 23 cooperates with a rubber blanket cylinder 37 in the form of a known type. The rubber blanket cylinder 37 does not have an intermediate support device in the illustrated embodiment. However, the rubber blanket cylinder 37 may have one intermediate support device when printing on the web 60 divided in the vertical direction (longitudinal direction).
[0023]
The ink transfer cylinder 22 has an effective support ring 49 on the left side and an outer sliding ring 51 on the right side, one on the left side, following both effective width ends 05 and 10.
[0024]
The ink supply roller 21 structured as a screen roller or in another configuration consists of a high-precision support ring 37 on the left side and a high-precision support ring 37 on the left side, respectively, at both ends 05; 10 of its effective width. And a support ring 38.
[0025]
The plate cylinder 23 has a high-precision left-side outer support ring 52 and a right-side outer sliding ring 53, respectively, following both ends 05; 10 of its effective width.
[0026]
The rubber blanket cylinder 37 has both ends 05; 10 of its effective width, each having a high-precision support ring 54 on the left side and an outer sliding ring 56 on the right side. On the one hand, the left support rings 37, 49, 52, 54 of the cylinders 31, 22, 23, 37 and on the other hand the right support rings 29, 51, 53, 56 are frictionally connected to each other in the same row.
[0027]
The left support pins 42, 57, 58, and 59 of the cylinders 21, 22, 23, and 37 are supported (bearing) in a support portion (bearing) of the left side frame 28.
[0028]
The support pins 43, 61, 62, 63 on the right side of the cylinders 21, 22, 23, 37 are supported in the support part of the right side frame 29.
[0029]
Ink application of the screen roller 21 is performed via a known chamber doctor 64.
[0030]
The present invention is not limited to use in an ink supply apparatus that is performed via the chamber doctor 64. As shown in FIG. 4, the operation of inking the plate of the plate cylinder 23 is performed by two inks having different diameters by a conventional inking device 66 (for example, a pump device, a lifting device or a film inking device). You may carry out via the form roller 65; 69.
[0031]
The two ink form rollers 65; 69 have one or many annular recesses around the rubber-elastic covering portion (peripheral wall). Each of the recesses is arranged to face the intermediate support ring 27 of the plate cylinder 23. The concave portion prevents the support ring 27 of the plate cylinder 23 from running on the rubber. Each inking roller 65; 69 is paired with an ink leveling roller 76; 77 (intermediate roller) having an adjustable axial stroke. The ink leveling rollers 76 and 77 are made of a material that is made of a hard oleophilic material such as polyamide or copper and has no recesses. The ink leveling roller is adapted to obtain ink application via each one roller 73; 74 without an intermediate support ring, but in the form of two rubber blankets arranged side by side in the axial direction. It has a typical lipophilic coating (peripheral wall).
[0032]
The rollers 73; 74 likewise have one or a number of annular recesses around their elastic elastic peripheral wall or have two rubber blankets arranged side by side as described above. is doing. The recesses are positioned so as to face the intermediate support rings 75 of the ink transfer cylinder 67, respectively. The ink transfer cylinder has a left outer support ring and a right outer support ring. Similar to the rollers 76 and 77, the outer peripheral surface of the ink transfer cylinder 67 is coated with a hard lipophilic layer (for example, polyamide, copper) on the left and right sides of the intermediate support ring 75. In the embodiment shown in FIG. 4, ink is supplied to the printing apparatus 40; 45 from the ink fountain 83 to the ink transfer cylinder 67 via the ink swing roller 84 and the intermediate roller 85 (ink roller) .
[0033]
A support roller 71 (support spindle 71) is provided in the intermediate chamber between the ink transfer cylinder 67 and the plate cylinder 23, and the support roller 71 has at least one intermediate support ring 70. However, the support roller 71 may additionally have two support rings located on the outside of the left side or the right side. These support rings are frictionally connected in a row with the support rings located outside the cylinders 37, 23 and 67.
[0034]
The intermediate ring 70 is in rotational contact with the intermediate support ring 75 of the non-screened ink transfer cylinder 67 and the intermediate support ring 27 of the plate cylinder 23. As described above, the oleophilic covering portions of the inking rollers 65 and 69 cooperating with the plate cylinder 23 have endless recesses as with all the rollers having the intermediate support ring. This endless recess is used to provide space for the support rings located opposite each other and is located in the same row as the width of the respective support ring involved. Of course, the recess is slightly wider than the width of the sliding surface of the intermediate support ring.
[0035]
In all the embodiments described above, all the rotation axes of the main cylinders (37), 23, 22, and 21 for printing both surfaces of the web 60 of the left and right printing apparatuses 50 and 45 are common. A configuration in which the surfaces 78 are parallel to each other is common. The surface 78 may be strained in the horizontal direction or may form an angle Alpha with respect to the horizontal.
[0036]
Also, the main cylinder of the first (right side) printing device 45 is used for front side printing, and the second (left side) printing device 50 performs back side printing on separate sides 81; It may be arranged. These surfaces 81; 82 are arranged so as to intersect each other at an acute angle, a right angle, or an obtuse angle Beta (FIG. 5).
[0037]
The diameter of the ink transfer cylinder 67 is in an advantageous manner and is a positive multiple of the diameter of the plate cylinder 23, for example twice. The ink transfer cylinder 67 has at least one intermediate support ring 75 and additionally has two outer support rings. In the ink transfer cylinder 67, the left and right outer peripheral surfaces of the intermediate support ring 75 are covered with, for example, rubber, Rilsan, copper or other oleophilic endless covering portions. Further, the ink transfer cylinder 67 may be covered with a rubber blanket attached to a metal support. A sleeve having an oleophilic outer peripheral surface may be provided.
[0038]
A left inking device 88 and a right inking device 89 respectively assigned to the left and right plate cylinders 23 (in the illustrated embodiment, the roller 21 and the ink transfer cylinder 22 each having a structured oleophilic outer peripheral surface) Are supported by a common left side frame 91 or right side frame 92 slidable in the horizontal direction (for example, via individual motors).
[0039]
All the main cylinders and rollers (21; 22; 23; 37-37; 23; 22; 21) in the printing area consist of two printing devices 50; 45, which are horizontal surfaces. Are parallel to each other in a common plane 78 forming an angle Alpha.
[0040]
FIG. 6 shows a so-called “10” machine (“10” printing devices). The printing unit 40 includes five left-side printing devices 45 arranged one above the other and five right-side printing devices 50 arranged one above the other. The printing device 45 on the left side and the printing device 50 on the right side each form one printing location for front side printing and back side printing. Correspondingly cooperating rubber blanket cylinders 37 at each printing location and all rubber blanket cylinders of the above-described embodiments can be placed in and out of known types (for example via driven eccentric bushings). .
[Brief description of the drawings]
FIG. 1 is a schematic view of a first embodiment of a cylinder of a printing unit with an intermediate support ring.
FIG. 2 is a schematic plan view of a printing unit having another embodiment of a cylinder with an intermediate support ring.
3 is a front view of the printing unit shown in FIG. 2 without a side frame.
FIG. 4 is a schematic view of another embodiment of a printing unit with two printing devices for duplex printing having a cylinder / roller / spindle with an intermediate support ring.
FIG. 5 shows double-sided printing in which the rotation axes of cylinders / rollers / spindles for front-side printing and back-side printing are located on one surface, and these surfaces intersect at a predetermined angle. FIG. 2 is a schematic view of a printing unit having a printing apparatus for
FIG. 6 is a schematic view showing a state in which printing units each having a 2 × 5 printing device are arranged one above the other, and an inking device for the printing device is arranged in two horizontally movable frames. It is.
[Explanation of symbols]
01 plate cylinder, 02 ink transfer cylinder, rubber blanket cylinder, 03, 04 intermediate support device (intermediate support ring), 05 effective width end, 06 spindle, 07 collar, 08 journal (bearing pin), 09 support ring, 10 End of effective width, right side, 11, 12 fitting tube, 13 tightening nut, 14 counter nut, 15 support ring, 16 male thread, 17 thread member, left side, 18 journal, 19 area without outer support ring, 20 Support surface (03; 04), 21 screen roller, 22 ink transfer cylinder, rubber cylinder, 23 printing cylinder, 24 intermediate support ring, 25 support surface (24), 26, 27 intermediate support device, intermediate support ring (22), 28, 29 Side frame, 30 Support surface, 31 Support ring part, 32 Shoulder, Left side, Cylindrical, 33 Shoulder Right side, cylindrical, 34 mating tube, 35 support ring, outside, left side, 36 fitting tube, right side, 37 support ring, outside, left side, 38 support ring, outside, right side, 39 fitting tube, 40 printing unit, 41 is a name pin, 42 support pin, left side, 43 support pin, right side, 44 threaded rod coupling part, 45 printing device, first (40), 46, 47, 48 threaded rod coupling part, 49 sliding ring , Outside, left side (22), 50 printing device, second (40), 51 support ring, outside, right (22), 52 support ring, outside, left side (23), 53 support ring, outside, right side (23) 54 Support ring, outside, left side (37), 55 Effective width (21; 22; 23; 37), 56 Support ring, outside, right side (37), 57 Support pin (22), 58 Support pin (23), 59 support pin (37), 60 web, 61 support pin (22), 62 support pin (23), 63 support pin (37), 64 chamber doctor, 65 ink form roller, upper side, 66 inking device, Conventional, 67 ink transfer cylinder, 68 dampening device, 69 ink deposit cylinder, lower side, 70 intermediate support ring (71), 71 support cylinder, spindle, 72 intermediate support ring (71), 73, 74 roller, with recess 75 intermediate support ring (67), 76 intermediate roller, upper side, no recess, 77 intermediate roller, lower side, no recess, 78 faces, common, 79 web, 81 face first, 82 face, second, 83 Ink fountain, 84 Ink roller, 85 Intermediate roller, 86 Plate, 87 Rubber blanket, 88 Inking device, Left side, 89 Inking device, Right side, 91 frame , Left side, 92 frames, right side

Claims (12)

A printing apparatus for a rotary printing press, wherein at least one plate cylinder is provided, and the plate cylinder includes first and second cylinder effective width end portions at both axial ends of the cylinder effective width , First and second support surfaces are provided outside the first and second barrel effective width ends,
An intermediate support ring of the plate cylinder is disposed between the first cylinder effective width end and the second cylinder effective width end, and the intermediate support ring has a support surface on the outer peripheral surface;
An inking device having at least one ink roller and an ink transfer cylinder is provided, the ink roller and the ink transfer cylinder having first and second cylinder effective width end portions having supporting surfaces. have been further has an intermediate support ring said ink roller and the transfer cylinder is provided with an outer peripheral surface between the cylinder effective width end portion, a support surface formed on the outer peripheral surface of the intermediate support ring of the plate cylinder When the said intermediate support supporting surface formed on the outer peripheral surface of the ring of the at least one ink roller and ink transfer cylinder has interact with each other,
A printing apparatus for a rotary printing press.   Each intermediate support ring is fixed in a non-rotatable manner relative to the cylinder effective width end of the plate cylinder, the cylinder effective width end of the ink roller, and the cylinder effective width end of the ink transfer cylinder, respectively. Item 2. The printing apparatus according to Item 1.   The printing apparatus according to claim 1, wherein each of the intermediate support rings is an annular support ring.   The printing apparatus according to claim 1, wherein the support surface is flat.   The printing apparatus according to claim 1, further comprising a blanket cylinder provided with a plurality of rubber blankets arranged side by side in the axial direction.   The printing apparatus according to claim 1, wherein the at least one plate cylinder includes a plurality of plate plates arranged side by side in the axial direction.   The printing apparatus according to claim 1, wherein each of the plate cylinder, the at least one ink roller, and the ink transfer cylinder has a rotation axis arranged on a common surface. The printing apparatus according to claim 7 , wherein the at least one plate cylinder, the at least one ink roller, and the ink transfer cylinder form a printing unit. The printing apparatus according to claim 7 , wherein the common surface extends horizontally. The printing apparatus according to claim 7 , wherein the common surface extends at a predetermined angle with respect to a horizontal line. The printing apparatus according to claim 1, wherein the intermediate support ring is disposed substantially at the center of each cylinder effective width of the plate cylinder, the ink roller, and the ink transfer cylinder provided with the intermediate support ring .   The printing apparatus according to claim 1, wherein the intermediate support ring is configured as a body pillow.

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